Avocado/soy unsaponifiables

Avocado/soy unsaponifiables (ASUs). Unsaponifiables are components of an oil, fat, wax, etc. that are not soluble in water. They include sterols, squalene, carotenoids and the fat-soluble vitamins (vitamins A, D, E and K) 1. Soybean oil unsaponifiables include β-sitosterol, stigmasterol, campesterol, carotenoids and vitamins A, E and K 2. Avocado oil unsaponifiables include sterols 3, carotenoids, and vitamins E and K 2.


  1. Bender D. Bender’s Dictionary of Nutrition and Food Technology. Boca Raton, Fla: CRC Press, 2006.
  2. Souci SW, Fachmann, W. KH. Food Composition and Nutrition Tables. MedPharm Scientific Pub, 2008.
  3. Lozano YF, Mayer CD, Bannon C, Gaydou EM. Unsaponifiable matter, total sterol and tocopherol contents of avocado oil varieties. J Am Oil Chem Soc 1993;70:561-5.